Blood Link
This webtoon was amazing! It has a whole ass generation of stories. The first story is about a vampire and werewolf falling in love with each other, and they concieve a child. All this because the werewolf is a female even if his gender is male. So he could conceive the child. The second story is about the child that was conceived, the hybrid of vampire+werewolf is male. He forgets that he gets marked by a pureblood female werewolf and finds him again. This time the pureblood female werewolf has his memory switched so he thinks that he is a male when he is a female. They both concieve 3 children together. The third couple is the father of the vampire and the grandfather of the hybrid and his partner is the uncle of the female pureblood, he is a male werewolf who refuses to become a vampire. THE BEST.
Alpha no Ie no Ko
About an alpha who had a fucked up life growing up because his "elite" family took his parents away from him and tried to convince him that omegas are inferior. However he is a nice guy and tries to break the family view on omegas, and falls in love with an omega who already has a child, and also he takes care of his little brother who gets kicked out of the household cuz he is an omega.
Oyasuminasai No Ato Wa